BSC 2011 Lecture Notes - Lecture 30: Net Reproduction Rate, Homeostasis, Doubling Time

• School: University of Florida
• Department: Biology - Biological Sciences
• Course: BSC 2011
• Professor: Keith Choe

Document Summary

Bsc2011 - integrated principles of biology 2 - lecture 30: population part 2. Per capita birth rate (b): number of offspring an average individual produces. Per capita death rate (d): average individual"s chance of dying. Per capita growth rate: (r) = (b-d) This is the average individual"s contribution to total population growth rate. A life history is a timetable of individual organism"s life. The timetable is also modified by the environment. Salmon have one reproductive event and produce thousands of eggs. Elephants have a 23 month gestation period with one offspring event. Storm petrels, a type of bird, reproduced at 4-5 years of age with one offspring per year. Thrush, another type of bird, reproduce in within one year of birth. They have 3-4 offspring per year and live 3-4 years. Life tables are used for determining changes in population size. They summarize age-specific data on the life history (survival and fecundity).